BroadcastChannelParent::BroadcastChannelParent(
const PrincipalInfo& aPrincipalInfo,
const nsACString& aOrigin,
const nsAString& aChannel,
bool aPrivateBrowsing)
: mService(BroadcastChannelService::GetOrCreate())
, mOrigin(aOrigin)
, mChannel(aChannel)
, mAppId(nsIScriptSecurityManager::UNKNOWN_APP_ID)
, mIsInBrowserElement(false)
, mPrivateBrowsing(aPrivateBrowsing)
{
AssertIsOnBackgroundThread();
mService->RegisterActor(this);
if (aPrincipalInfo.type() ==PrincipalInfo::TContentPrincipalInfo) {
const ContentPrincipalInfo& info =
aPrincipalInfo.get_ContentPrincipalInfo();
mAppId = info.appId();
mIsInBrowserElement = info.isInBrowserElement();
}
}
already_AddRefed<nsIPrincipal>
PrincipalInfoToPrincipal(const PrincipalInfo& aPrincipalInfo,
nsresult* aOptionalResult)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aPrincipalInfo.type() != PrincipalInfo::T__None);
nsresult stackResult;
nsresult& rv = aOptionalResult ? *aOptionalResult : stackResult;
nsCOMPtr<nsIScriptSecurityManager> secMan =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
nsCOMPtr<nsIPrincipal> principal;
switch (aPrincipalInfo.type()) {
case PrincipalInfo::TSystemPrincipalInfo: {
rv = secMan->GetSystemPrincipal(getter_AddRefs(principal));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return principal.forget();
}
case PrincipalInfo::TNullPrincipalInfo: {
const NullPrincipalInfo& info =
aPrincipalInfo.get_NullPrincipalInfo();
principal = nsNullPrincipal::Create(info.attrs());
return principal.forget();
}
case PrincipalInfo::TContentPrincipalInfo: {
const ContentPrincipalInfo& info =
aPrincipalInfo.get_ContentPrincipalInfo();
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs(uri), info.spec());
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
PrincipalOriginAttributes attrs;
if (info.attrs().mAppId != nsIScriptSecurityManager::UNKNOWN_APP_ID) {
attrs = info.attrs();
}
principal = BasePrincipal::CreateCodebasePrincipal(uri, attrs);
rv = principal ? NS_OK : NS_ERROR_FAILURE;
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
return principal.forget();
}
case PrincipalInfo::TExpandedPrincipalInfo: {
const ExpandedPrincipalInfo& info = aPrincipalInfo.get_ExpandedPrincipalInfo();
nsTArray<nsCOMPtr<nsIPrincipal>> whitelist;
nsCOMPtr<nsIPrincipal> wlPrincipal;
for (uint32_t i = 0; i < info.whitelist().Length(); i++) {
wlPrincipal = PrincipalInfoToPrincipal(info.whitelist()[i], &rv);
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
// append that principal to the whitelist
whitelist.AppendElement(wlPrincipal);
}
RefPtr<nsExpandedPrincipal> expandedPrincipal = new nsExpandedPrincipal(whitelist, info.attrs());
if (!expandedPrincipal) {
NS_WARNING("could not instantiate expanded principal");
return nullptr;
}
principal = expandedPrincipal;
return principal.forget();
}
default:
MOZ_CRASH("Unknown PrincipalInfo type!");
}
MOZ_CRASH("Should never get here!");
}
